Global Patent Index - EP 0909034 B1

EP 0909034 B1 20071219 - Counting circuit with rewritable non-volatile memory and counting method

Title (en)

Counting circuit with rewritable non-volatile memory and counting method

Title (de)

Zählerschaltung mit wiederbeschreibbarem Speicher und Zählverfahren

Title (fr)

Circuit de comptage avec mémoire non-volatile réinscriptible et méthode de comptage

Publication

EP 0909034 B1 20071219 (EN)

Application

EP 98118965 A 19981007

Priority

JP 27422897 A 19971007

Abstract (en)

[origin: EP0909034A2] A frequency counter 1 comprises a binary counter section 11 having a binary counter 20 for counting up frequency data, and a EEPROM counter section 12 having an EEPROM 40 containing frequency data. In frequency count processing, frequency data of the EEPROM 40 are loaded into the binary counter 20. The binary counter 20 executes count up by a specified frequency on the loaded frequency data. The counted up frequency data are written into the EEPROM 40 and the frequency data of the EEPROM 40 is updated. In one frequency count process, rewriting of the EEPROM 40 is completed once, which means that the number of time the EEPROM 40 is rewritten is reduced. <IMAGE>

IPC 8 full level

G11C 16/02 (2006.01); H03K 21/40 (2006.01); G06F 7/50 (2006.01); G06K 17/00 (2006.01); G06K 19/07 (2006.01)

CPC (source: EP)

H03K 21/403 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0909034 A2 19990414; EP 0909034 A3 20000412; EP 0909034 B1 20071219; DE 69838867 D1 20080131; DE 69838867 T2 20081204; JP H11110499 A 19990423; US 6314155 B1 20011106

DOCDB simple family (application)

EP 98118965 A 19981007; DE 69838867 T 19981007; JP 27422897 A 19971007; US 16684698 A 19981006